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Guanghao Zhang resolved HBASE-25077. ------------------------------------ Fix Version/s: 2.2.7 2.4.0 2.3.3 3.0.0-alpha-1 Resolution: Fixed Pushed to branch-2.2+. Thanks [~arshad.mohammad] for contributing. > hbck.jsp page loading fails, logs NPE in master log. > ---------------------------------------------------- > > Key: HBASE-25077 > URL: https://issues.apache.org/jira/browse/HBASE-25077 > Project: HBase > Issue Type: Bug > Components: hbck > Affects Versions: 2.2.3 > Reporter: Ajeet Rai > Assignee: Mohammad Arshad > Priority: Major > Fix For: 3.0.0-alpha-1, 2.3.3, 2.4.0, 2.2.7 > > > While testing with large data, it is observed that some time hbck page was > not accessible and NPE was thrown in log. > > 【Test step】Excat Steps are not known. Observed this while executing below > steps > 1: Test data: 9K regions,~300 issues in my test setup > 2: run hbck_chore and catalogjanitor_run multiple times > 3: Also run balancer so that region movement is happening. > 4: Observe that HBCK page not available > > 2020-09-21 20:05:31,706 WARN [qtp1698322791-94] server.HttpChannel: /hbck.jsp > java.lang.NullPointerException > at > org.apache.hadoop.hbase.generated.master.hbck_jsp.formatServerName(hbck_jsp.java:37) > at > org.apache.hadoop.hbase.generated.master.hbck_jsp._jspService(hbck_jsp.java:144) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) > at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:844) -- This message was sent by Atlassian Jira (v8.3.4#803005)